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PatchSiren cyber security CVE debrief

CVE-2026-88514 gnachman CVE debrief

A local attacker can obtain sensitive information in iTerm2 macOS before 3.6.12. This issue allows unauthorized access to potentially sensitive data. Defenders should verify and apply the patch to prevent information disclosure. The vulnerability highlights the importance of keeping software up-to-date and monitoring system logs for potential exploitation attempts. iTerm2 users should assess their exposure and take necessary actions to protect their systems. The CVE record and source item provide limited information about the vulnerability, but it is clear that immediate action is required to prevent potential data breaches.

Vendor
gnachman
Product
iTerm2
CVSS
Unknown
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-07
Original CVE updated
2026-10-07
Advisory published
2026-10-07
Advisory updated
2026-10-07

Who should care

Defenders responsible for macOS systems, particularly those using iTerm2, should assess exposure and apply the patch to prevent information disclosure. This includes IT personnel, security teams, and system administrators who manage iTerm2 deployments. Additionally, operators and platform administrators should review the vulnerability and take necessary actions to protect their systems. Vulnerability management and security teams should prioritize patching

Why it matters

CVE-2026-88514 allows local attackers to obtain sensitive information in iTerm2 macOS before 3.6.12. Defenders should verify and apply the patch, monitor system logs, and restrict access to sensitive information.

  • Verify patch application to prevent information disclosure
  • Monitor system logs for potential exploitation attempts
  • Restrict access to sensitive information

Technical summary

The CVE record and source item indicate that an issue in iTerm2 macOS before 3.6.12 allows a local attacker to obtain sensitive information. The exact nature of the issue and the sensitive information that can be obtained are not specified. However, defenders should verify and apply the patch to prevent information disclosure. The vulnerability is likely related to improper access controls or data handling within iTerm2. Affected systems may be vulnerable to unauthorized data access, and defenders should take immediate action to protect their systems.

Defensive priority

Verify and apply the patch to prevent information disclosure

Recommended defensive actions

  • Verify the iTerm2 version and apply the patch to prevent information disclosure.
  • Monitor system logs for potential exploitation attempts.
  • Restrict access to sensitive information.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review.
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented.
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and source item provide limited information about the vulnerability. The CVE description mentions that an issue in iTerm2 macOS before 3.6.12 allows a local attacker to obtain sensitive information. However, the exact nature of the issue and the sensitive information that can be obtained are not specified.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-88514 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-88514

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-88514 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-88514

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • CVE-2026-88514

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/88xxx/CVE-2026-88514.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://github.com/gnachman/iTerm2/commit/1260814ac9c12aeb3a5cbfb26d00c72ff9e79327

    Supplemental source

  • Source reference

    Unverified legacy reference

    URL: https://gist.github.com/NSEcho/4b8e82450944c2bdbf042c990a029174

    Supplemental source

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.